Product updates

Release Notes:

Redesigned article header:

• Added a "Follow Author" button
• Added a button with comments count that jumps to the comment section when clicked

Other updates:

• Added project waitlist form to homepage footer
• Fixed bug where article reactions popup wasn't closing when u clicked away
• Fixed bug where profile popup was under article popup when clicking on author avatar
• Fixed bug where article popup wasn't closing when clicking to view user's full profile
• Fixed a session bug across browser tabs
• Fixed community members count always 0 unless a member